how does capacitor oppose sudden chane in voltage?
how does inductor oppose sudden change in current?
Answers were Sorted based on User's Feedback
Answer / sai
Because the relationship between voltage and current in a capacitor is:
i = C*dv/dt
An instantaneous change in the voltage across a capacitor would require that the rate of change of the voltage (dv/dt) be infinite, and hence the current would have to be infinite.
For inductors, the relationship is:
v = L*di/dt
In order for the rate of change of current to be infinite (instantaneous change), the applied voltage would have to be infinite.
| Is This Answer Correct ? | 4 Yes | 7 No |
Answer / sabaris
Generally capacitors stores the energy as voltage in magnetic field..the stored energy is directly proportional to the area and inversly proportional to the distance btwn the two metals...these two things are constant.already it charges in a linear time and discharging it in some linear time..if a sudden change will occur(i.e. vge raise or drop) there is no possibility to charge are discharge with respect to it..thats why capacitor always dont allow the sudden changing voltages...in inductor it stores the energy as current in electric field...similarly the procedure is above the same....
| Is This Answer Correct ? | 3 Yes | 12 No |
Answer / ganesh.k
initially capacitor behaves like a short circuit so even though v apply voltage across capacitor the vltg across it is zero due 2 short ckt condition, whereas the inductor initially acts as a open ckt so it oppose any sudden chage in current
| Is This Answer Correct ? | 8 Yes | 18 No |
What is size 00, 01, 1 etc., in HRC fuse types?
how to calculate the tarriff for an industry whose kva demand is 10 mva
In Slip ring Induction Motor we use Liquid Rotor Starter for Starter Every Time Liquid Filling we need add Soda Sodium Carbonate or only Distilled water is Enough.
how to set earth fault relay
IF i have switchgear with busbar current rating of 1000Amp 35kA then is it necessary to have outgoing breaker kA rating to be equal to busbar kA rating?
Define bibo stability.
what is rotor earth fault protection scheme in hydro generator & what is dc field flashing ?
Why the rating of dc machine is in HP??/ Do reply guys..Its very important......
hw to calculate flc of motor ? data are:3-phase,50Hz,30kw
in thermal overload relay class 10A indicate what
why US countries maintains 110v and 60HZ
What are books to be referred for KPTCL exam?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)